The eldest of the four children of [[Milo Burrows]] and [[Peony Baggins]], Mosco was related to both [[Bilbo Baggins]] and [[Frodo Baggins]], but only in the most distant manner. He was present at Bilbo's famous [[Farewell Party]] at the age of just fourteen. At the time of the [[War of the Ring]], he would have nearly come of age, but there is no record to show whether he played a part in the [[Shire]]'s troubles at that time.

Mosco was the the eldest child of [[Milo Burrows|Milo]] and [[Peony Baggins|Peony Burrows]]. He was present at Bilbo's famous [[Bilbo's Farewell Party|Birthday Party]] at the age of just fourteen.<ref>{{App|Baggins}}</ref>